Un-häp'py, a.

a. 1. Not happy or fortunate; unfortunate; unlucky; as, affairs have taken an unhappy turn.

2. In a degree miserable or wretched; not happy; as, children sometimes render their parents unhappy.
3. Marked by infelicity; evil; calamitous; as, an unhappy day. “This unhappy morn.” Milton.
4. Mischievous; irregular; wicked. [Obs.] Shak.